Essays about: "DBE"

Found 2 essays containing the word DBE.

1. 1. Numerical simulations of the Dynamic Beam Equation in discontinuous media

   University essay from Uppsala universitet/Avdelningen för beräkningsvetenskap

   Author : Niklas Wik; David Niemelä; Valter Wagner Zethrin; [2020]
   Keywords : Dynamic beam equation; DBE; SAT; projection; SBP;

   Abstract : The study examines the Projection method and the simultaneousapproximation-term (SAT) method as boundary treatment for the dynamic beam equation using summation-by-parts (SBP) operators for handling the inner domain. The methods are examined for both the homogeneous constant coefficient case, and the inhomogeneous piecewise constant coefficient case with a coupled interface. READ MORE

3. 2. Numerical simulation of the Dynamic Beam Equation using the SBP-SAT method

   University essay from Uppsala universitet/Institutionen för informationsteknologi

   Author : Vidar Stiernström; [2014]
   Keywords : Dynamic beam equation; finite difference methods; stability; boundary treatment;

   Abstract : A stable boundary treatment of the dynamic beam equation (DBE) with two different sets of boundary conditions has been conducted using the summation-by-parts-simultaneous-approximation-term (SBP-SAT) method. As the DBE involves a fourth derivative in space the numerical boundary treatment is highly non-trivial. READ MORE